Name: Do Anti-lock Brakes use Static or Kinetic Friction? by Billy Category: Dynamics Date Added: 2016-06-30 Submitter: Flipping Physics
Billy analyzes ABS brakes to show the difference between Rolling without Slipping and Rolling with Slipping. He also answers the question in the title of the video, but why would I write that in the description? Want Lecture Notes? This is an AP Physics 1 Topic.
Content Times:
0:17 ABS Brakes
0:40 Demonstrating Rolling without Slipping and Rolling with Slipping
1:36 How ABS Brakes work
2:18 Analyzing a car tire
3:34 The calculations
Next Video: Everybody Brought Mass to the Party!
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Does the Book Move? An Introductory Friction Problem
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Do Anti-lock Brakes use Static or Kinetic Friction? by Billy

Billy analyzes ABS brakes to show the difference between Rolling without Slipping and Rolling with Slipping. He also answers the question in the title of the video, but why would I write that in the description? Want Lecture Notes? This is an AP Physics 1 Topic.
Content Times:
0:17 ABS Brakes
0:40 Demonstrating Rolling without Slipping and Rolling with Slipping
1:36 How ABS Brakes work
2:18 Analyzing a car tire
3:34 The calculations
Next Video: Everybody Brought Mass to the Party!
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Does the Book Move? An Introductory Friction Problem
Please support me on Patreon!

You place a book on a 14° incline and then let go of the book. If the book takes 2.05 seconds to travel 0.78 meters, what is the coefficient of kinetic friction between the book and the incline?
Want Lecture Notes? This is an AP Physics 1 Topic.
Content Times:
0:01 The example
0:13 Listing the known values
1:09 Drawing the free body diagram
1:58 Net force in the perpendicular direction
2:34 Net force in the parallel direction
4:03 Solving for acceleration
5:07 Solving for Mu
5:40 We made a mistake
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Introductory Static Friction on an Incline Problem
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Name: Introductory Kinetic Friction on an Incline Problem Category: Dynamics Date Added: 2016-06-16 Submitter: Flipping Physics
You place a book on a 14° incline and then let go of the book. If the book takes 2.05 seconds to travel 0.78 meters, what is the coefficient of kinetic friction between the book and the incline?
Want Lecture Notes? This is an AP Physics 1 Topic.
Content Times:
0:01 The example
0:13 Listing the known values
1:09 Drawing the free body diagram
1:58 Net force in the perpendicular direction
2:34 Net force in the parallel direction
4:03 Solving for acceleration
5:07 Solving for Mu
5:40 We made a mistake
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Introductory Static Friction on an Incline Problem
Please support me on Patreon!
Introductory Kinetic Friction on an Incline Problem

Name: Calculating the Uncertainty of the Coefficient of Friction Category: Dynamics Date Added: 2016-06-16 Submitter: Flipping Physics
10 trials to calculate the coefficient of static friction and how to calculate the uncertainty of this measurement.
More details about Standard Deviation is in the lecture notes. This is an AP Physics 1 Topic.
Next Video: Introductory Kinetic Friction on an Incline Problem
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Introductory Static Friction on an Incline Problem
Please support me on Patreon!
Calculating the Uncertainty of the Coefficient of Friction

10 trials to calculate the coefficient of static friction and how to calculate the uncertainty of this measurement.
More details about Standard Deviation is in the lecture notes. This is an AP Physics 1 Topic.
Next Video: Introductory Kinetic Friction on an Incline Problem
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Introductory Static Friction on an Incline Problem
Please support me on Patreon!

Name: Introductory Static Friction on an Incline Problem Category: Dynamics Date Added: 2016-06-13 Submitter: Flipping Physics
A book is resting on a board. One end of the board is slowly raised. The book starts to slide when the incline angle is 15°. What is the coefficient of static friction between the book and the incline? Want Lecture Notes? This is an AP Physics 1 Topic.
Content Times:
0:01 The example
0:44 Drawing the free body diagram
1:41 Net force in the parallel direction
2:11 Demonstrating why the acceleration in the parallel direction is zero
3:58 Force normal does not equal force of gravity
4:32 Net force in the perpendicular direction
5:07 Return to the parallel direction
6:06 Substituting in numbers
Next Video: Calculating the Uncertainty of the Coefficient of Friction
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Physics "Magic Trick" on an Incline
Please support me on Patreon!
Introductory Static Friction on an Incline Problem

A book is resting on a board. One end of the board is slowly raised. The book starts to slide when the incline angle is 15°. What is the coefficient of static friction between the book and the incline? Want Lecture Notes? This is an AP Physics 1 Topic.
Content Times:
0:01 The example
0:44 Drawing the free body diagram
1:41 Net force in the parallel direction
2:11 Demonstrating why the acceleration in the parallel direction is zero
3:58 Force normal does not equal force of gravity
4:32 Net force in the perpendicular direction
5:07 Return to the parallel direction
6:06 Substituting in numbers
Next Video: Calculating the Uncertainty of the Coefficient of Friction
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Physics "Magic Trick" on an Incline
Please support me on Patreon!

Name: Introductory Work due to Friction equals Change in Mechanical Energy Problem Category: Work, Energy, Power Date Added: 2016-02-12 Submitter: Flipping Physics
The equation Work due to Friction equals Change in Mechanical Energy can often be confusing for students. This video is a step-by-step introduction in how to use the formula to solve a problem. Want Lecture Notes? This is an AP Physics 1 topic.
Content Times:
0:09 The problem
1:29 Why we can use this equation in this problem
1:52 Expanding the equation
2:29 Identifying Initial and Final Points and the Horizontal Zero Line
3:00 Substituting into the left hand side of the equation
4:05 Deciding which Mechanical Energies are present
4:59 Where did all that Kinetic Energy go?
5:27 Identifying which variables we know and do not know
5:58 Solving for the Force Normal
6:57 Substituting Force Normal back into the original equation
8:09 Why isn’t our answer negative?
Next Video: Work due to Friction equals Change in Mechanical Energy Problem by Billy
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Introduction to Mechanical Energy with Friction
1¢/minute
Introductory Work due to Friction equals Change in Mechanical Energy Problem

The equation Work due to Friction equals Change in Mechanical Energy can often be confusing for students. This video is a step-by-step introduction in how to use the formula to solve a problem. Want Lecture Notes? This is an AP Physics 1 topic.
Content Times:
0:09 The problem
1:29 Why we can use this equation in this problem
1:52 Expanding the equation
2:29 Identifying Initial and Final Points and the Horizontal Zero Line
3:00 Substituting into the left hand side of the equation
4:05 Deciding which Mechanical Energies are present
4:59 Where did all that Kinetic Energy go?
5:27 Identifying which variables we know and do not know
5:58 Solving for the Force Normal
6:57 Substituting Force Normal back into the original equation
8:09 Why isn’t our answer negative?
Next Video: Work due to Friction equals Change in Mechanical Energy Problem by Billy
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Introduction to Mechanical Energy with Friction
1¢/minute

Name: Introduction to Mechanical Energy with Friction Category: Work, Energy, Power Date Added: 2016-02-08 Submitter: Flipping Physics
Learn how to use Mechanical Energy when the Work done by Friction does not equal zero.
Want Lecture Notes? This is an AP Physics 1 topic.
Content Times:
0:09 When is Conservation of Mechanical energy true?
0:37 Work due to Friction equals the Change in Mechanical Energy
1:57 Determining the angle in the work equation
3:01 When the angle is not 180 degrees
3:50 What if the work done by friction is zero?
4:31 Always identify …
Next Video: Introductory Work due to Friction equals Change in Mechanical Energy Problem
Multilingual? Please help translate Flipping Physics videos!
Previous Video: The Energy Song by Bo
1¢/minute
Introduction to Mechanical Energy with Friction

Learn how to use Mechanical Energy when the Work done by Friction does not equal zero.
Want Lecture Notes? This is an AP Physics 1 topic.
Content Times:
0:09 When is Conservation of Mechanical energy true?
0:37 Work due to Friction equals the Change in Mechanical Energy
1:57 Determining the angle in the work equation
3:01 When the angle is not 180 degrees
3:50 What if the work done by friction is zero?
4:31 Always identify …
Next Video: Introductory Work due to Friction equals Change in Mechanical Energy Problem
Multilingual? Please help translate Flipping Physics videos!
Previous Video: The Energy Song by Bo
1¢/minute

Name: Conservation of Energy Problem with Friction, an Incline and a Spring by Billy Category: Work, Energy, Power Date Added: 2016-01-14 Submitter: Flipping Physics
Billy helps you review Conservation of Mechanical Energy, springs, inclines, and uniformly accelerated motion all in one example problem.
Want Lecture Notes? This is an AP Physics 1 topic.
Content Times:
0:10 The problem
0:38 Listing the known values
1:40 Using Conservation of Mechanical Energy
2:56 Canceling out the Mechanical Energies which are not there
4:18 Drawing the Free Body Diagram
4:52 Summing the forces in the perpendicular direction
5:26 Summing the forces in the parallel direction
6:59 Using Uniformly Accelerated Motion
7:56 Finding the maximum height
Next Video: Work due to the Force of Gravity on an Incline by Billy
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Introductory Conservation of Mechanical Energy Problem using a Trebuchet
1¢/minute
Conservation of Energy Problem with Friction, an Incline and a Spring by Billy

Billy helps you review Conservation of Mechanical Energy, springs, inclines, and uniformly accelerated motion all in one example problem.
Want Lecture Notes? This is an AP Physics 1 topic.
Content Times:
0:10 The problem
0:38 Listing the known values
1:40 Using Conservation of Mechanical Energy
2:56 Canceling out the Mechanical Energies which are not there
4:18 Drawing the Free Body Diagram
4:52 Summing the forces in the perpendicular direction
5:26 Summing the forces in the parallel direction
6:59 Using Uniformly Accelerated Motion
7:56 Finding the maximum height
Next Video: Work due to the Force of Gravity on an Incline by Billy
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Introductory Conservation of Mechanical Energy Problem using a Trebuchet
1¢/minute

We use Newton’s Second Law and Uniformly Accelerated Motion to experimentally determine the Static Coefficient of Friction between Tires and Snow. Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:09 Reading and translating the problem 1:03 Visualizing the experiment 1:16 Where to begin? 1:45 Drawing the Free Body Diagram 3:09 Summing the forces in the y-direction 4:47 Summing the forest in the x-direction 6:24 Uniformly Accelerated Motion 7:35 Solving for the coefficient of static friction 8:18 All 9 trials Next Video: Breaking the Force of Gravity into its Components on an Incline Multilingual? Please help translate Flipping Physics videos! Previous Video: Everybody Brought Mass to the Party! 1¢/minute

Name: Determining the Static Coefficient of Friction between Tires and Snow Category: Dynamics Date Added: 2015-10-08 Submitter: Flipping Physics
We use Newton’s Second Law and Uniformly Accelerated Motion to experimentally determine the Static Coefficient of Friction between Tires and Snow. Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:09 Reading and translating the problem 1:03 Visualizing the experiment 1:16 Where to begin? 1:45 Drawing the Free Body Diagram 3:09 Summing the forces in the y-direction 4:47 Summing the forest in the x-direction 6:24 Uniformly Accelerated Motion 7:35 Solving for the coefficient of static friction 8:18 All 9 trials Next Video: Breaking the Force of Gravity into its Components on an Incline Multilingual? Please help translate Flipping Physics videos! Previous Video: Everybody Brought Mass to the Party! 1¢/minute
Determining the Static Coefficient of Friction between Tires and Snow

Name: Does the Book Move? An Introductory Friction Problem Category: Dynamics Date Added: 2015-08-19 Submitter: Flipping Physics
Determine if the book moves or not and the acceleration of the book. It’s all about static and kinetic friction. Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:08 Reading and translating the problem 0:57 5 Steps to help solve any Free Body Diagram problem 1:26 Drawing the Free Body Diagram 2:24 Sum the forces in the y-direction 3:22 Sum the forces in the x-direction 4:56 The answer to part (a) 6:22 Solving part (b) Multilingual? Please help translate Flipping Physics videos! Previous Video: Experimentally Graphing the Force of Friction 1¢/minute
Does the Book Move? An Introductory Friction Problem

Determine if the book moves or not and the acceleration of the book. It’s all about static and kinetic friction. Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:08 Reading and translating the problem 0:57 5 Steps to help solve any Free Body Diagram problem 1:26 Drawing the Free Body Diagram 2:24 Sum the forces in the y-direction 3:22 Sum the forces in the x-direction 4:56 The answer to part (a) 6:22 Solving part (b) Multilingual? Please help translate Flipping Physics videos! Previous Video: Experimentally Graphing the Force of Friction 1¢/minute

To help understand the force of friction, mr.p pulls on a wooden block using a force sensor. Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:17 Drawing the Free Body Diagram 0:43 Summing the forces in the x-direction 1:21 Graph when the block doesn’t move 1:46 Graph with the block moving Next Video: Does the Book Move? An Introductory Friction Problem Multilingual? Please help translate Flipping Physics videos! Previous Video: Understanding the Force of Friction Equation 1¢/minute

Name: Understanding the Force of Friction Equation Category: Dynamics Date Added: 2015-08-18 Submitter: Flipping Physics
The Force of Friction Equation is actually three equations is one. Learn why! Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:00 The basic Force of Friction Equation 0:20 One Kinetic Friction Equation 0:39 The Two Static Friction Equations 1:40 Example Free Body Diagram 2:16 The direction of the Force of Friction 3:20 Determining the magnitude of the Force of Static Friction 4:09 Understanding the “less than or equal” sign 6:08 If the “less than or equal” sign were not there Next Video: Experimentally Graphing the Force of Friction Multilingual? Please help translate Flipping Physics videos! Previous Video: Introduction to the Coefficient of Friction 1¢/minute
Understanding the Force of Friction Equation

The Force of Friction Equation is actually three equations is one. Learn why! Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:00 The basic Force of Friction Equation 0:20 One Kinetic Friction Equation 0:39 The Two Static Friction Equations 1:40 Example Free Body Diagram 2:16 The direction of the Force of Friction 3:20 Determining the magnitude of the Force of Static Friction 4:09 Understanding the “less than or equal” sign 6:08 If the “less than or equal” sign were not there Next Video: Experimentally Graphing the Force of Friction Multilingual? Please help translate Flipping Physics videos! Previous Video: Introduction to the Coefficient of Friction 1¢/minute

Please do not confuse the Coefficient of Friction with the Force of Friction. This video will help you not fall into that Pit of Despair! Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:00 The equation for the Force of Friction 0:17 Mu, the symbol for the Coefficient of Friction 1:21 Tables of Coefficients of Friction 2:49 Comparing the values of static and kinetic coefficients of friction 3:54 A typical range of values Next Video: Understanding the Force of Friction Equation Multilingual? Please help translate Flipping Physics videos! Previous Video: Introduction to Static and Kinetic Friction by Bobby 1¢/minute

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